Travel Guide: Greece 2026

Internet & connectivity

Network: Good 4G/5G (Cosmote, Vodafone, Wind) on the mainland and islands

Physical SIMs require ID in stores. An eSIM is faster — activate before you depart and use across the EU.

eSIM compatibility:5/5★★★★★

Best areas

Connectivity tips

• ●Cosmote has the best coverage including on the islands
• ●Signal can be weak on remote beaches and small islands
• ●Download ferry schedules and offline maps for island hopping

Best time to visit

April–June or September–October (warm, fewer crowds)

Getting around: Ferries between islands, metro in Athens, domestic flights